E90Post
 


TNT Racewerks
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Australia > Urgent - Coils broke during spark plug change



Reply
 
Thread Tools Search this Thread
      07-22-2016, 02:18 AM   #1
CYL
Major
13
Rep
1,081
Posts

Drives: E92
Join Date: Aug 2013
Location: Australia

iTrader: (0)

Urgent - Coils broke during spark plug change

The coil broke when I was doing the cylinder 4 spark plug.
Any proper way to pull the stuck part out from the hole so that I can unscrew the spark plug?

I am at my friend new house and have no long pliers available, is it ok for me to put the coil back in and deal with it later?

People talked about cutting the broken part in pieces so that I can still use the spark plug socket to unscrew the spark plug, but I think it is so risky to have the rubber going into the combustion chamber.

Help...
Attached Images
 
Appreciate 0
      07-22-2016, 02:22 AM   #2
CYL
Major
13
Rep
1,081
Posts

Drives: E92
Join Date: Aug 2013
Location: Australia

iTrader: (0)

Broken like this:
Attached Images
 
Appreciate 0
      07-22-2016, 05:12 AM   #3
DR-JEKL
Brigadier General
Australia
225
Rep
4,553
Posts

Drives: Space Grey E92 335i 6MT
Join Date: Jul 2012
Location: Newcastle Ozstraylia

iTrader: (3)

Try cutting or splitting the rubber? Would a cut throat razor fit? Then just use a vac cleaner to suck out any rubber pieces?
Appreciate 0
      07-22-2016, 05:40 AM   #4
vtl
IPA: \ví tí ɛ́l\
vtl's Avatar
Australia
202
Rep
1,722
Posts

Drives: 2008 BMW 135i MT
Join Date: Apr 2015
Location: Melbourne, Australia

iTrader: (0)

Ah that looks like a pain. Never happened to me but seems like one of the nightmares that can happen from very simple jobs.

You can attempt to put the coilpack back in, will probably misfire but you can at least get home on 5 cylinders.

Go to the shops and get the longest needlenose pliers you can get. These jobs can take 5 minutes or 5 hours.

Removing the valve cover would be sure fire way of accessing the spark plug but that's probably not a job i'd recommend to a beginner diyer.
__________________
2008 Alpine White BMW 135i Manual | MHD Stage 2 | Agency Power DPs | 550i Clutch | Wagner FMIC | Turbosmart Kompact DVs | M3 Control arms | Bilstein B12 ProKit | Dinan Camber Plates | E46 M3 Trans mounts | Nolathane rear subframe bushings | Ferodo DS2500 pads | Yokohama AD08R | Gutted CDV | Schroth Harness | LEDs
Appreciate 0
      07-22-2016, 10:46 AM   #5
CYL
Major
13
Rep
1,081
Posts

Drives: E92
Join Date: Aug 2013
Location: Australia

iTrader: (0)

Quote:
Originally Posted by vtl View Post
Ah that looks like a pain. Never happened to me but seems like one of the nightmares that can happen from very simple jobs.

You can attempt to put the coilpack back in, will probably misfire but you can at least get home on 5 cylinders.

Go to the shops and get the longest needlenose pliers you can get. These jobs can take 5 minutes or 5 hours.

Removing the valve cover would be sure fire way of accessing the spark plug but that's probably not a job i'd recommend to a beginner diyer.
Have put the broken coil back in and started the car.
Drove on the freeway at 110km/h for 30km, then another 20km city driving until home now.
On the freeway, whenever I had above 2.5k rpm acceleration, there is a big knock, stopping at traffic was fine and smooth.
However, situation became worse when I was in the city, car constantly shaking, put it in neutral gear and the shake disappeared.

I just got told that I shouldn't be driving the car with 5 cylinders, severe damage to the engine is very likely.
I wonder how much damage had I done to the engine for the last 50km driven??
Anyone can point me to the right direction to check if anything has been damaged? How to diagnose?
*when I drove the car! there wasn't any fault code! I only found misfire code when I parked on the side and scanned with Carly when the shaking became serious in the city. If misfire is a big damage to engine, why BMW won't alert the driver by going into limp mode???

I am getting 6 new coils now and will install them next week when I receive it.
If everything goes well after installing the new coils, I may get the MDH tune as well since all plugs and coils have been replaced.
Appreciate 0
      07-22-2016, 07:15 PM   #6
mikenazz
Second Lieutenant
Australia
8
Rep
203
Posts

Drives: 335i e92
Join Date: Apr 2011
Location: Forestville Sydney

iTrader: (0)

you will be fine. when ur engine detects missfire it will shut off fuel to thay cylinder. hence preventing damage and it shakes the car at low speed/idle. we have all been through it.

take the valve cover off if u cant get it out with long nose pliers.
Appreciate 0
      07-22-2016, 07:18 PM   #7
ash335
Commander
ash335's Avatar
Australia
4
Rep
126
Posts

Drives: 2008 e92 335i
Join Date: Feb 2016
Location: Melbourne AUS

iTrader: (0)

So, just out of interest, the shaking and knocking sound... is that just a manifestation of the engine firing 'out of balance' as 1 cylinder is not functioning??
__________________
2008 e92 335i Platinum Bronze - Walnut/Sparks/Coils/0w40 - K&N Filter - MHD Stage 1 ECU - Alpina ZB 7603537 TCU - TS Dual Port Kompact BOV - RB PCV - Nitro Aikido
2006 e53 X5 3.0i Sterling Grey - Stock
Ex's - '94 BMW 318is Brilliant Red, '96 BMW M3 Cosmos Black, '09 Subaru WRX Grey
Appreciate 0
      07-22-2016, 08:48 PM   #8
DR-JEKL
Brigadier General
Australia
225
Rep
4,553
Posts

Drives: Space Grey E92 335i 6MT
Join Date: Jul 2012
Location: Newcastle Ozstraylia

iTrader: (3)

Haha I remember my 1st limp mode after doing a log when installing a tune...

I was like wtf have I done is it a blown engine because I added a tune, or have I blown a diff!?!

Youll be fine mate, long nose pliers can be expensive but if you get em at bunnings you coukd use em once and take em back for a refund the next day
Appreciate 0
      Yesterday, 12:17 AM   #9
CYL
Major
13
Rep
1,081
Posts

Drives: E92
Join Date: Aug 2013
Location: Australia

iTrader: (0)

Quote:
Originally Posted by mikenazz View Post
you will be fine. when ur engine detects missfire it will shut off fuel to thay cylinder. hence preventing damage and it shakes the car at low speed/idle. we have all been through it.

take the valve cover off if u cant get it out with long nose pliers.
With only 5 cylinders where 1 cylinder isn't firing, I thought there will be extra stress on the other pistons or crankshaft?
I thought the pistons work in pair while one goes down is also pushing another one down.
I read online that inline 6 is very harmonic compared to V engine, but the more I read, the more I feel like the misfiring is really bad to the engine components.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 11:59 AM.




e90post
e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST